declination
名詞
UK/ˌdek.lɪˈneɪ.ʃᵊn/
US/ˌdek.ləˈneɪ.ʃᵊn/
定義 declination 名詞
- Countableastronomyspecialized
The angular distance of a celestial object north or south of the celestial equator, or the angle between magnetic north and true north.
The star has a declination of positive 25 degrees.
Due to the Earth's magnetic field, the local declination is 5 degrees west.
Astronomers use declination and right ascension to pinpoint the location of celestial objects.